LAX Fog

Los Angeles doesn't see much fog. In recent decades, most years have seen fewer than 50 hours of <400m visibility at LAX. Fog this past Friday hung around until well past sunset, and delayed my incoming flight by 2h. You can see the airport as the bright stripe in the top third of this photo.

Contrast this with San Francisco, where there are around 70 mornings each summer where low cloud delays flights at SFO.

Changes in fog are, like everything else, caused by global warming. There are contradictory reports claiming to reveal the direction of the change.